4.2 How Minerals Form

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Vocabulary

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solution- a mixture where one substance dissolves another
vein- a slab of mineral that is very different from the surrounding rock

Outline

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4.2 How minerals form

• Process that forms minerals
  • minerals have been forming deep in the earth crust for many years
• Minerals from magma
  • when magma cools, it forms a mineral
  • the minerals change depending on how fast it cools
    • they form a pattern when they cool
• Minerals from hot water solutions
  • hot water will dissolve many minerals
    • when hot water comes up, they form a chimney
• Minerals formed by evaporation
  • sometimes minerals are found in water
    • when water evaporates it leaves the minerals behind
• Where minerals are found
  • rocks can be found anywhere in the world